Application Layer Gateway Service - ALG

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Below is a description of this Windows Vista service:

Provides support for 3rd party protocol plug-ins for Internet Connection Sharing/Windows Firewall.

# Default Settings:

Default setting in Windows Vista Home Basic is: Manual
Default setting in Windows Vista Home Premium is: Manual
Default setting in Windows Vista Business is: Manual
Default setting in Windows Vista Ultimate is: Manual

# This Windows service logs on as:

Local System

# The default path for this Windows service is:

%systemroot%\system32\alg.exe

# This Windows service depends on the following system components:

None.

# The following services have a dependency on this service:

None.

Marc Says:

This subcomponent of the Internet Connection Sharing (ICS) service provides support for independent software vendors (ISVs) to write protocol plug-ins that allow their proprietary network protocols to pass through the firewall and work behind ICS. Application Layer Gateway plug-ins have the power to open ports and change data (such as ports and IP addresses) embedded in packets.